Improvement in apparatus for making ice and for refrigerating purposes



refrigeratingvessel;-` c c v f Y My invention relates to an apparatus for ner andan outercase, the inn Ferca ARCHIBALD B. TRIPLER, orfNEW ORLEANS, LOUISIANA- lIMPliOVEMlENT IIN-APPARATUS FOR MAKING |CE AND FOR REFRIGERATING PURPUSES.'

` Specilioationfornlingpart of Letters Patent No. `1 12,654, dated March 14, 1871 antedated February 28,

isn.

c To all inkom it mayconcem i v 4 n HBe itknow'nthat I, ARCHIBALD B. TRIP- l LER, ofthe city oi"l New Orleans, in the parish `Lof `OrleansandMState of Louisiana, have in-y vented certain `newV anduseful Improvements in Machines for `Making Ice and for RefrigeratingPurposes; `and Ido hereby declare ,that

t thefollowing is axfull,`clear, and exact descripf tion thereof, which will enable those skilled in .theart to make anduse my invention, reference being had to the accompanying drawings y of the same, which make part ofthis specilication, and in which-` I Figure lrepreseuts a horizontal section of a machine'embracing `my improvements. Fig.

`2represents a vertical section of the same,

and Fig. 3 represents a similar` section-of the making ice and for refrigerating purposes, and n in its construction I utilize the Well-known" principle that air` upon :compression rises in temperature and Vfalls in corresponding ratio upon expansion, and Lthe heat thus generated bycompression `I dispose 'of by evaporation invacuum.

" In the` accompanying drawings,.A reprey. sen ts the cold-generating vessel, within which a double acting` air-pump, B, heat-conductingpipes, and an expansion-chamber, O,are arl- `ranged so asto be subjected alike to the same ,degree of; cold, andjD, representsQthe refrigerating-vesseLj These vessels are of `any suita-v ble construction, and each is provided with g an arched` top andga dome. l Y

t `The double-actingair-pump Bis arranged y so that each end thereof extends outside of the l .c vesselA, and is for the purpose of compress- I `ing air to any1 given degree, and the expanz sion-chamberOis connected with the air-pump y by means of a coil `or coils of pipe, E', `for! the `purposeof conducting the air compressed-in the pumplinto the expansion-chamber, and

, giving out its heat .in .said transit. `At each end of the air-pump there aretwovalves, one l 1 forinductionand the other foreduction. These I Ilvalvesare arrangedin the ends of the pump,

p `and are opened andclosed by theactionof the cwpiston. H v 2 `Therefrigerati g E keine refrigerated or for the formation of ice,and the outer tially non-congealable liquid, suchV as salt and Water, diluted alcohol, or the volatile lproducts of petroleum; and in order that said liquid may have a circulation therein a chamber, I, is formed at the bottom ofthe outer vessel D, Within which is secured a horizontal shaft, having thereon Wings J ,Which,when revolved,

impart to said liquid a circulating motion,

`whereby theevaporation will be more readily effected, the object of which will be hereafter described. rlhe continuity of this chamber is partially interrupted by a partition, a, as shown in Fig. 3, attached to the bottom of the inner vessel, and extending into the chamber I parallel with the propeller, thus causing thevvings J to draw the-liquid in at one side and force it out at the other side ot' said chamber I With greater force, which 'has the elect of increasing the speed of the circulation. The Winged propeller is driven by a pulley on its outer end or by any ysuitable means.

In order to still further increase the evaporation of `the circulating liquid, a reticulated diaphragm, b, is-arranged Within the circulating-chamber G, above the top of the receivingchamber F, with which it forms a junction at one side, c; so as to cause the liquid to pass up at this side overand upon the said diaphragm b, through the holes in which it de.- scends upon the top of the receiving-,chamber and down its opposite side, as indicated by the arrows in Fig. 3. This arrangement of the reticulated diaphragm, While it diverts the course of the liquid, also diffuses it while in continuous circulation around the re'rigerat ing-receiver, and thus increases its eva'poration.V c To effect this diusion of the liquid, it is necessary that the diaphragm should always `be above the liquid within vthe circulatingspace,` y

An-vacuum'is formed Within the arcli and dome oftherefrigerating-vessel above the receiver-Eby means of an ordinary vacuum-pump,

for the purpose of obtaining a more rapid evaporation of the liquid, and thus produce a low 'degree of temperature. rEhe liquid is introduced into the circulating-chamber G through suitable pipes, P, while said chamber isin a state of vacuum. 'Ihe effect of this vacuum upon the liquid is kept up by the aid of the vacuum-pump and suitable condensers.

The receiving-vessel F is provided with an opening, d, in its top, which is covered with a slide-valve, e, operated from the outside, the object of which is to open communication between the inner and the dome chamber, as

shown in Fig. 2, to produce a vacuum in theV inner chamber F, as may be required in effecting the object of refrigeration, as will be hereafter described.

The slide-valve e is surrounded by a collar, f, which prevents the liquid in the circulatingchamber from flowing into the receiving-chamber F when the valve is open.

The receiving-chamber F is connected to the expansion-chamber (.l by means of a pipe, K, which is intersected byan automatic pressure-valve, L, so that when the pressure in the expansion-chamber reaches a point greater than the resistance offered by the weight of said valve it will'open and allow the compressed air to pass into and expand in the receiving-chamber.

rIhe double-acting air-pump B, the expansion-chamber, and the coil or coils of pipe'E, which connect them in the cold generating chamber, are covered a suitable depth therein with water or other partially non-congealable liquid. The arch and dome of this generating-vessel are connected with the vacuumpumps in the same manner as the connection of the vacuum-pumps with the refrigeratingvessel, for the purpose of causing rapid evaporation of the liquid therein, thereby getting rid of the heat of the air within the pump, pipes, and expansion-chamber, generatedl by its compression, and reducing it to near the freezing-point. K

After the air is allowed to expand through the weighted valve into the refrigeratingchamber and perform its refrigerating function it passes through pipes M M, connected with the refrigerating chamber. These pipes pass into and through the circulating-chamber G, back to the air-pump, and connect with the induction-valves thereof, thus causing a continuous circulation of the air at a temperature that will produce ice or for any refrigerating purpose.

In the process of preserving meat by antiseptic compounds, it is cut into suitable pieces and placed in the receiving-chamber in suitable wooden boxes or troughs. The slidevalve eis then opened, which establishes communicationbetween the receiving-chamber F and the vacuum-chamber above, thereby causing the antiseptic preparation to flow, by atmospheric pressure, through the pipe N, from a tank outside, into the troughs containing the meat. The antiseptic being, in this condi-" tion, under the induence of vacuum, is thoroughly absorbed by the meat.

The antiseptic may be of any suitable compound used in the curing of meat; but I prefer to use salt, niter, and carbonate of soda, in proper proportions, in a state of solution. The meat is allowed to remain in this condition a sufficient length of time, when the slidevalve e is closed, and the compressed air from the cold-generating vessel is allowed to pass into the refrigerating-receiver, as heretofore described, thus reducing the temperature of the antiseptic compound surrounding the meat, and in this way destroying the animal heat, which is the chief cause of its decomposition.

In the process of making ice, the water to be frozen is placed in suitable compartments or vessels in the receiving-chamber, so as to expose all their sides; the slide-valve e is opened for the purpose of producing a vacuum in said chamber, thereby causing a gradual reduction of the temperature of the water to be frozen and removing the globules of air contained in the water, which,if not extracted, would cause the ice to have a translucent instead of a transparent condition upon congealatiou. After this is accomplished the air is allowed to iiow continuously back and forth ,from the cold-generating chamber through the automatic valve into the receiver F, until the ice is formed. l

It will be observed that the receiver F, being surrounded on all sides by the chamber G, and the compressed air admitted directly into the inner chamber, it will affect alike all sides of the ice-vessels, which result cannot be obtained when the upper sides of said vessels are not so surrounded, as heretofore. A

1n the application of this invention for the cooling of chambers, hospitals, marine vessels, mines, Stc., the refrigerating-vessel is dispensed with, and the compressed air, regulated by the automatic pressurevalve, is forced, by the air-pump, into and through the coil or coils of Ipipe E, into the expansionchamber G, from whence it is carried, by suitable pipes, to the chamber or places to be cooled.

The temperature of the air to be thus supplied can be regulated at pleasure by means of the automatic valve.

In order to counteract the outside iniiuence ef the atmosphere upon the inc losing-cases of vL'fe generating chamber and refrigerator, I cover these vessels with a suitable non-conductor of heat, in such manner as to entirely insulate the apparatus.

The domes of the cold-generating and refrigerating chambers are connected to each other by a pipe, Q, a branch, R, from which l leads to the vacuum-pumps. This pipe is intersected by a stop-cock, S, so that in case a vacuum is not required to be created in the cold-generating chamber, it is closed to cut oif its communication, and have the action of the vacuum in the refrigerator only.

In the pipe T leading to the vacuum-pump, I insert a spraying injection-condenser forthe purpose of condensing the vapors produced by the vacuum inthe generating `and refrigerating vessels.` The condensing-fluid which I use for this purpose consists of a weak solution of sulphur-ic acid or Vchloride ot' calcium, which, being amore powerful absorbent than water, accomplishes the object more rapidly. The injection of a chemical condensing-duid I have found to be more speedyt and advantageousthan the `use oi" drypchemiycals or water, but `I do not confine myself toithis means `of condensation. i y

The circulating-duid may be withdrawn fromfthe vessels, when desired, by suitable cocks.` I` "have described the refrigerating-vessel as being constructedwith a revolving shaft of wings, to 4produce a continuous circulation of the fluid surrounding the receiver, but it is be `provided with a similar-wingedpropeller forthe same purpose. Y Having described "y invention, I claim- 1. A vacuum created in the cold-generating chamber A, above the surface of vthe duid, l which covers theyheat-conducting coil or coils E, air-pump B, and expansion-chamber C, for the purpose of getting rid oi' the heat generated by the compressed air, substantiallyas described. f

. i `2. The revolving winged propeller J, located and arranged at the bottom of the refrigeratingcase for the purpose of imparting to the uid surrounding the receiver a continuous circulatingrmotion, substantially as described. 3. The interveningfluid-chamber'Gr of the refrigerator, having its `continuity interrupted by means of thepartition a, located andarranged near the winged propeller for the purpose of accelerating the circulation of said fluid, as herein shown and described.

l 4.. The circulatingchamber G, closed on one side of thefreceiver, and open only at its bot-' tom, for the purpose of causing the flow of the liquid over, upon, and through the reticulated .diaphragm onto :thetop ot' the receiving-chamber F, and down the opposite side of said obvious that the cold-generating vessel may reduction of the temperature of the air to the freezing-point, by producing a vacuum within said freezing-chamber, substantially as herein described.

6. A chemical absorbent used for condensing purposes, injected in a state of solution in the pipe or pipes leading to the vacuumpump, for the purpose of condensing the vapors produced bythe vacuum, substantially as described.

7. The slide-valve e, or its equivalent, at the top of the receiver F, for the purpose of openvacuum-chamber, in order to produce a vacuum in said receiver,substantially as described. 8. The article under preservation, covered y conducting-pipes E, and the expansion-chamber C, located and arranged within a single receiver and connected directly to each other so that they will all be subjected. to the same degree Vot' cold, in the manner herein described.

y ll., Thecombination of a refrigerator, having an inner receiving-chamber, F, surrounding case D, and intervening vacuum and liquid-chamber Gr, with a cold-generating chamcoil orfcoils of pipe, E, for transmitting heat, an expansion-chamber. C, and avacuum-chamber for absorbing and vaporizing said heat, the two vessels, A and F, being connected to each other by an automatic pressure-valve,

ranged as herein shown and described.

In testimony whereof I have hereunto set my hand.

A. B. TRIPLER.

Witnesses T. H. UPPERMAN,

\ chamber G,as herein shown and described.

5. In the process of making ice, the gradual A.E. H. JOHNSON.

ing communication with the receiver and the with an antiseptic compound, and While in this ber A, having a compressing air-pump, B, a

`the several parts being constructed and ar- 

